Coherent Phonons in Ag-BaO Thin Films

Chin. Phys. Lett.

1998, Vol. 15

Issue (11): 834-836 DOI:

Original Articles

Coherent Phonons in Ag-BaO Thin Films

QIAN Wei¹;YAN Hong¹;WANG Jing-jing¹;ZOU Ying-hua¹;LIN Lin²;WU Jin-lei²

¹Department of Physics, Mesoscopic Physics Laboratory, ²Department of Electronics, Peking University, Beijing 100871

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QIAN Wei, YAN Hong, WANG Jing-jing et al 1998 Chin. Phys. Lett. 15 834-836

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Abstract Coherent acoustic phonons have been observed in Ag nanoscale particles (NSPs) embedded in BaO thin film by means of the femtosecond time-resolved pump-probe technique. The oscillatory component in the signal corresponds to a very low-frequency acoustic phonon mode of Ag NSPs. The generation of coherent acoustic phonons is attributed to the resonant excitation of localized surface plasmon.

Keywords: 78.47.+p 63.20.-e 78.66.Jg

Published: 01 November 1998

PACS:	78.47.+p
	63.20.-e	(Phonons in crystal lattices)
	78.66.Jg	(Amorphous semiconductors; glasses)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1998/V15/I11/0834

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